Ultradyne Athena AK-47 Liner Compensator 7.62x39mm Black Nitride 416 Stainless Steel 14x1 LH. Gases have been vented forward to create a reduced sound signature by sending a lower percent of blast back towards the shooter optimizing sonic performance over recoil. Athena gives cleaner appearance for a sleek look compared to a traditional compensator. A crush washer is included for easy installation. Specifications for Ultradyne Athena AK-47 Liner Compensator: Manufacturer: Ultradyne Projectile Caliber: .312 Caliber Threads per Inch: 14x1 LH Color: Black Gun Model: AK-47 Caliber: 7.62x39mm Condition: New Finish: Black Nitride Additional Features: Left Hand Outer Diameter: 1.1 in Weight: 114 g Fabric/Material: 416 Stainless Steel Country of Origin: USA Length: 2 in Package Contents: Ultradyne Athena AK-47 Liner Compensator What firearm models does the manufacturer say Ultradyne Athena AK-47 Liner Compensator is compatible with? The manufacturer says that Ultradyne Athena AK-47 Liner Compensator is compatible with AK-47Ultradyne UD10850: Athena AK-47 Liner Compensator 7.62x39mm Black Nitride 416 Stainless Steel 14x1 LH